Battery Management IC BQ7693003DBTR 3.3 V 40 UA Li-Phosphate Battery Moniter

Applications

• Light electric vehicles (LEV): eBikes, eScooters, pedelec, and pedal-assist bicycles

• Power tools and garden tools

• Battery backup units (BBUS), energy storage systems (ESS), and uninterruptible power supply (UPS) systems

• Other industrial battery packs (≥10S)

Specifications

Description

The BQ769x0 family of robust analog front-end (AFE) devices serves as part of a complete pack monitoring and protection solution for next-generation, high-power systems, such as light electric vehicles, power tools, and uninterruptible power supplies. The BQ769x0 is designed with low power in mind: Subblocks within the IC may be enabled or disabled to control the overall chip current consumption, and a SHIP mode provides a simple way to put the pack into an ultra-low power state.

The BQ76920 device supports up to 5-series cells or typical 18-V packs, the BQ76930 handles up to 10-series cells or typical 36-V packs, and the BQ76940 works for up to 15-series cells or typical 48-V packs. A variety of battery chemistries may be managed with these AFEs, including Li-ion, Li-iron phosphate, and more. Through I2C, a host controller can use the BQ769x0 to implement many battery pack management functions, such as monitoring (cell voltages, pack current, pack temperatures), protection (controlling charge/discharge FETs), and balancing. Integrated A/D converters enable a purely digital readout of critical system parameters, with calibration handled in TI’s manufacturing process.

Features

• AFE monitoring features

– Pure digital interface

– Internal ADC measures cell voltage, die temperature, and external thermistor

– A separate, internal ADC measures pack current (coulomb counter)

– Directly supports up to three thermistors (103AT)

• Hardware protection features

– Overcurrent in Discharge (OCD)

– Short Circuit in Discharge (SCD)

– Overvoltage (OV)

– Undervoltage (UV)

– Secondary protector fault detection

• Additional features

– Integrated cell balancing FETs

– Charge, discharge low-side NCH FET drivers

– Alert interrupt to host microcontroller

– 2.5-V or 3.3-V output voltage regulator

– No EEPROM programming necessary

– High supply voltage absolute maximum (up to 108 V) – Simple I2C compatible interface (CRC option)

– Random cell connection tolerant

Trading Guides

Shenzhen Retechip® Electronic Technology Co., Ltd. was established in 2013, specializing in electronic components distribution business.The products are widely used in communication equipment, power supply, medical electronics, automotive electronics, digital electronics, industrial electronics, display modules, intelligent electronics, new energy, the Internet of things, 5G productsand other fields，With high-quality products, reasonable prices, rapid distributionand timely service, we can provide customers with the most cost-effective products and save customers a lot of time.